Microbial electrolysis cells (MECs) provide a high-yield method for producing hydrogen from renewable biomass. One challenge for commercialization of the technology is a lowcost and highly efficient cathode. Stainless steel (SS) is very inexpensive, and cathodes made of this material with high specific surface areas can achieve performance similar to carbon cathodes containing a platinum cataly...

A method was developed for assessing ascorbic acid concentration in commercial fruit juice by cyclic voltammetry. The anodic oxidation peak for ascorbic acid occurs at about 490 mV on a Pt disc working electrode (versus SCE). The influence of the potential sweep speed on the peak height was studied. The obtained calibration graph shows a linear dependence between peak height and ascorbic acid c...

TiO₂-coated boron particles were prepared by a wet ball milling method, with the particle size distribution and average particle size being easily controlled by varying the milling operation time. Based on the results from X-ray photoelectron spectroscopy, transmission electron microscopy, energy dispersive X-ray analysis, and Fourier transform infrared spectroscopy, it was confirmed that the i...

Ruthenium oxide (RuOx) thin films were spin coated by thermal decomposition of alcoholic solutions RuCl3 on titanium foils and subsequently annealed at 400 °C. The effect coating parameters, such as spinning speed, volume, molar concentration the precursor well number deposits, morphology electrochemical performance electrodes was investigated. characterized scanning electron microscopy (SEM) e...

Background: Diazepam belongs to the group of 1,4-benzodiapines. It is used for treatment anxiety, convulsions and as muscle relaxants. The presence a 4,5-azomethine enables its electrochemical detection. Introduction: A screen-printed electrode modified with antimony film was determination diazepam in pharmaceutical preparations Methods: Electrode modification done by ex-situ deposition on comm...

Atomic emission spectroelectrochemistry (AESEC) combined with linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) provided insights on both active passive dissolution of Ni-Fe-Cr-Mn-Co multi-principal element alloy. Elemental rates measured by AESEC during open circuit experiment were in agreement those extrapolated from AESEC-LSV indicated element-specific tendencie...

For the application in Fe/Fe-Redox-Flow-Batteries some important factors concerning composition of electrolyte and influence temperature on properties half-cell reactions were investigated. In contrast to previous investigations, measurements performed more realistically deposited iron by means linear sweep voltammetry. Since distinction between cathodic deposition hydrogen generation is not po...

Heteroatom-doped carbon quantum dots (CQD) were synthesized by 3 preparation methods: pyrolysis, microwave irradiation, hydrothermal synthesis. Their properties as electrocatalysts for the oxygen reduction reaction (ORR) in alkaline conditions studied linear sweep voltammetry. The best N-doped CQD obtained hydrothermally with an onset potential of 0.85 V vs RHE. Co-doping a second heteroatom, B...

Gas diffusion electrode was used for providing better conditions in fuel cell systems for oxygen reduction reaction (ORR). Because the slow kinetics of the oxygen reduction reaction at the proton exchange membrane fuel cell cathode restricts fuel cell efficiency. To this end, researchers have used platinum-coated carbon. In the present study, due to the reduction of carbon corrosion, Zinc oxide...

Abstract Copper (II) oxide nanoparticles (CuONPs) were green synthesized using Ocimum basilicum leaves aqueous extract in which polyphenols act as reducing and stabilizing agents. The CuONPs characterized X-ray diffraction spectroscopy, Fourier transform infrared transmission electron microscopy, selected area diffraction, Brunauer–Emmett–Teller (BET) surface analysis. analyses indicated the fo...